| Acronym | Meaning |
| EIA | Enzyme Immunoassay |
| VLWIR | Very Long Wavelength IR |
| VQMC | Variational Quantum Monte Carlo |
| OPCW | Organization For Prohibition Of Chemical Weapons |
| CFM | Contamination-free Manufacturing |
| LANL | Los Alamos National Laboratory |
| VIF | Valency-point Interaction Formula (in Graph Theory With At. And Mol. Orbitals) |
| CCA | Crystalline Cluster Approach (in Electronic Structure Calcns.) |
| PTD | Photothermal Deflection |
| AOX | Adsorbable Organohalogens |